ADDENDUM 1 (12/16/2020) REV. 06-28-19: REDREW SHEET. ADDENDUM 1 (12/16/2020) dgn .
LIMIT OF INDUCED TRENCH
20190628 SOIL EMBANKMENT - A 3
B A P D \ s e m u l F
nd a PROPOSED ROADWAY s t r e v l u C
01 . 110 \
S TOE OF FILL SLOPE LL A
W PLAN VIEW ND E
AND
S T TO BE USED FOR PIPE CULVERT INSTALLATION IN FILL AREAS R E V L U C
E
P PROPOSED SUBGRADE I P
110 \ T F A R D \ e n e
ug PROPOSED CULVERT
E LOCATION
r o
f LIMIT OF INDUCED TRENCH
GREATER OF r 1 SOIL EMBANKMENT
e 6" OR 2 O.D d
l FIRM EXISTING SOIL ABOVE PIPE o (STRIPPED OF TOPSOIL) F
ng i k r o W \ r e d l 5 X O.D MIN
o 5 X O.D MIN OD F
s ng
i SEE NOTE E w a r D
d r
a SECTION A-A nd a t S \ S
T GENERAL NOTES C E J
O A INDUCED TRENCH DETAIL MAY BE USED WHEN IN SITU SOIL IS FOUND UNACCEPTABLE R
P OR NO TRENCH EXISTS. \ MINOR REVISION -- FHWA s
u » B IF FIRM EXISTING SOIL IS FOUND WITHIN THE EMBANKMENT ZONE IT SHALL BE LEFT IN . APPROVAL NOT REQUIRED
n PLACE. t .
e t C FILL FOR THE INDUCED TRENCH TO BE TO A MIN DEPTH OF THE GREATER OF 6" OR 1/2 a t PIPE FILL MINIMUM COVER DEPTHS, DURING CONSTRUCTION OD OVER THE PIPE. s STATE OF TENNESSEE .
s FOR INDICATED AXLE LOADS, (IN.) d D SOIL EMBANKMENT SHALL BE COMPACTED TO MEET SUBGRADE COMPACTION STANDARD
a DRAWING . REQUIREMENTS IN STANDARD SPECIFICATION 207.04. t
e NOMINAL PIPE 18.0-50.0 110.0-150.0 50.0-75.0 75.0-110.0 DEPARTMENT OF TRANSPORTATION n
. E ONCE SOIL EMBANKMENT IS PLACED AND COMPACTED AS SHOWN, STANDARD DETAILS M DIA. FT KIP KIP KIP KIP
A FOR CONCRETE OR FLEXIBLE PIPE STANDARDS SHALL BE FOLLOWED TO COMPLETE
2.0-3.0 24.0 30.0 36.0 36.0 THE INSTALLATION. INDUCED TRENCH
10
: SOIL EMBANKMENT 00010
F F PAYMENT: SOIL EMBANKMENT 27 3.5-4.0 36.0 36.0 42.0 48.0 : W 9
AREA TO BE EXCAVATED FOR TRENCH AS SHOWN C SOIL EMBANKMENT THAT IS TO REMAIN IN PLACE WILL BE PAID FOR IN ITEM NO. 203-01. FOR 4.5-5.0 36.0 36.0 42.0 D ON D-PB-1 (CONCRETE) 48.0
S OR D-PB-2 (FLEXIBLE) SOIL THAT IS EXCAVATED FOR PIPE INSTALLATION WILL BE INCLUDED IN THE COST OF PIPE CULVERT 2019 03 / (AASHTO, SECTION 30) THE PIPE. INSTALLATION 23 AG / 7 \\ 01-02-2013 D-PB-3 LLP NOT TO SCALE ADDENDUM 1 (12/16/2020) ADDENDUM 1 (12/16/2020)
ADDENDUM 1 (12/16/2020) REV. 12-18-95: CHANGED DRAWING NO. FROM ESC-STR-11 TO EC-STR-11. REV.5-27-01: CHANGED ITEM NOS. 303-15.01 TO 303-10.01 AND 740-03.01 DETAIL FOR UP TO 36" PIPE SIZE DETAIL FOR 18" TO 24" PIPE SIZE TO 740-10.03. CHANGED DESCRIPTION FOR ITEM NOS. 709-05.05, 709-05.06, AND 709-05.07. REV. 12-18-02: CHANGED GENERAL TOE OF NOTE D. SLOPE TOE OF SLOPE REV. 1-22-03: ADDED ADDITIONAL R UNO GEOTEXTILE FABRIC TO ALL SECTIONAL VIEW. R UNO FF FF REV. 4-15-06: REFORMATTED SHEET, REVISED NOTES, MISC. EDITS TO DRAWING. E N ZO REV. 4-1-08: REMOVED DITCH AND CHANNEL APPLICATION, RENAMED E G DRAWING, REVISED NOTES, MISC. A EDITS TO DRAWING. R B O B T S REV. 8-1-12: MINOR EDITS TO GENERAL NOTES. T N E REV. 3-16-17: CORRECTED PAY ITEM A M I A NO. 209-05. D E RUNOFF S FLOW
4'-0" PIPE OR PIPE ENDWALL MINERAL AGGREGATE FLOW (SIZE 57)
MINERAL AGGREGATE MACHINED RIPRAP (SIZE 57) AT 1' THICK PIPE OR PIPE ENDWALL (CLASS A-1)
FF TOE OF MACHINED RIPRAP R UNO SLOPE (CLASS A-1)
FF R UNO PLAN VIEW dgn . TOE OF SLOPE 20170316 -
11 TWO LAYERS OF GEOTEXTILE FABRIC (TYPE III) NATURAL GROUND R
T SHALL BE PLACED BETWEEN MINERAL AGGREGATE LAYER PLAN VIEW S AND RIPRAP LAYER AND BETWEEN MINERAL AGGREGATE MACHINED RIPRAP
C TWO LAYERS OF GEOTEXTILE FABRIC (TYPE III)
E (CLASS A-1) \ AND NATURAL GROUND. SHALL BE PLACED BETWEEN MINERAL AGGREGATE g LAYER AND RIPRAP LAYER AND BETWEEN MINERAL w
d NATURAL GROUND AGGREGATE AND NATURAL GROUND. d t s MINERAL AGGREGATE 3'-0" MIN. (SIZE 57) AT 1' THICK 2017 \ MINERAL AGGREGATE 1'-6" MIN. D
T (SIZE 57) AT 1' THICK S
K 1
R 1 1 3 : . 5 . 5 O FLOOD STORAGE ZONE 1'-6" :1 3 :1 :1 FLOW
W 3'-6" 2'-0" \ FLOW SEDIMENT STORAGE ZONE 1'-6" 24" PIPE MAX. OR 96208 SEDIMENT STORAGE ZONE 10'-6" j 1'-0" 4'-0"
J PIPE ENDWALL MIN. 36" PIPE MAX. OR 4'-0"
on 18'-9"
k PIPE ENDWALL MIN. a p \
d ONE LAYER OF GEOTEXTILE FABRIC (TYPE III) ONE LAYER OF GEOTEXTILE FABRIC (TYPE III) SHALL BE PLACED UNDER ENTIRE AREA COVERED BY RIPRAP. SHALL BE PLACED UNDER ENTIRE AREA COVERED BY RIPRAP. kup ac b \ e n
e SECTION A - A SECTION B - B ug E
r o F
r e d l CULVERT PROTECTION TYPE 1 GENERAL NOTES o F
ng i A G k CULVERT PROTECTION (TYPE 1) MAY BE USED AROUND A CULVERT INLET TO ONLY GEOTEXTILE FABRIC (TYPE III) LISTED ON THE QUALIFIED PRODUCTS LIST r
o REDUCE FLOW VELOCITIES TO ALLOW SEDIMENTS TO DROP OUT. IT IS NORMALLY SHALL BE USED. W
\ USED WHERE ALL OF THE INFLOW TO THE CULVERT IS ON-SITE RUNOFF. IT MAY
w H
a ALSO BE USED WHERE A FILTRATION FUNCTION FOR VERY LOW FLOWS IS DESIRED. CULVERT PROTECTION (TYPE 1) SHALL BE PAID FOR UNDER THE FOLLOWING r
D ITEM NUMBERS:
nd B CULVERT PROTECTION (TYPE I) SHALL NOT BE USED IN STREAMS OR OTHER a
t NATURAL WATER RESOURCES, UNLESS PROVIDED FOR IN THE PERMITS. 203-01 ROAD & DRAINAGE EXCAVATION (UNCLASSIFIED) PER CUBIC YARD S \ 303-10.01 MINERAL AGGREGATE (SIZE 57) PER TON D
E C CULVERT PROTECTION (TYPE I) SHOULD NOT BE USED IN DITCHES, SWALES, 709-05.05 MACHINED RIPRAP (CLASS A-3) PER TON R OR OTHER DEPRESSIONS WITH A DEPTH GREATER THAN 1 FOOT. 709-05.06 MACHINED RIPRAP (CLASS A-1) PER TON MINOR REVISION -- FHWA
HA 740-10.03 GEOTEXTILE (TYPE III) (EROSION CONTROL) PER SQUARE YARD APPROVAL NOT REQUIRED. S D CULVERT PROTECTION (TYPE1) SHOULD NOT BE USED AT THE CULVERT OUTLET. 13 \ PAYMENT SHALL INCLUDE ALL MATERIALS AND LABOR NECESSARY FOR CONSTRUCTION, s
u NOT TO SCALE . E WHERE CONDITIONS OF HIGH SEDIMENT FLOW EXIST, MACHINED RIPRAP (CLASS A-3) MAINTENANCE, AND REMOVAL OF CULVERT PROTECTION (TYPE 1). n t
. MAY BE USED IN LIEU OF MACHINED RIPRAP (CLASS A-1) FOR PIPES UP TO 24 e t INCHES IN DIAMETER WITH A DRAINAGE AREA LESS THAN 3 ACRES. IT MAY ALSO I SEDIMENT SHALL BE REMOVED FROM BEHIND THE CULVERT PROTECTION (TYPE 1) a
t STATE OF TENNESSEE
s BE USED FOR PIPE FROM 24 INCHES IN DIAMETER WITH A DRAINAGE AREA LESS WHEN IT HAS ACCUMULATED TO ONE-HALF THE ORIGINAL HEIGHT OF THE STRUCTURE .
s THAN 6 ACRES. AND PAID FOR UNDER ITEM NUMBER 209-05, SEDIMENT REMOVAL PER CUBIC YARD. DEPARTMENT OF d a
. TRANSPORTATION t
e F AT MOST SITES, THE MAXIMUM ALLOWABLE DRAINAGE AREA SHALL BE 30 ACRES. n . AT SITES WHICH DRAIN TO EXCEPTIONAL TENNESSEE WATERS OR SEDIMENT-IMPAIRED STREAMS, THE MAXIMUM ALLOWABLE DRAINAGE AREA SHALL BE 20 ACRES. 38 :
00008 CULVERT 14 F
W PROTECTION C D 2017 - S TYPE 1
03 UN
J - AG \\ 29 EROSION CONTROL PLAN LEGEND: CULVERT PROTECTION (TYPE 1) 10-26-92 EC-STR-11 REV. 12-18-95: CHANGED DRAWING ADDENDUM 1 (12/16/2020) NO. FROM ESC-STR-34 TO EC-STR-34. SINGLE NET STAPLE 1.0' REV. 1-22-03: LAPPED LONGITUDINAL UNDISTURBED OR EROSION CONTROL ON CENTER SEAM IN ISOMETRIC VIEW. REMOVED STABILIZED SLOPE BLANKET ITEM 805-12.01 FROM GENERAL NOTE PROPERLY G, SINCE TYPE I BLANKETS ARE NO LONGER USED. PREPARED SINGLE NET 6" SLOPE SEE REV. 1-19-05: CHANGED GENERAL EROSION CONTROL NOTE D NOTE B. CHANGED PLAN VIEW BLANKET AND LONGITUDINAL SEAM VEIW. ALL OTHER EROSION REV. 4-1-08: REDREW REVISED PROPERLY CONTROL BLANKETS GENERAL NOTES, ADDED STANDARD PREPARED SYMBOL, REVISED INSTALLATION SLOPE SEE DETAILS. NOTE D ANCHOR 3'-0" REV. 8-1-12: MINOR EDITS TO TRENCH MIN. DRAWING AND GENERAL NOTES. (SEE DETAIL)
NETTING TO BE ON TOP OF BLANKET.
COMPACTED STAPLE 1.0' BACKFILL SOIL ON CENTER SINGLE NET EROSION CONTROL BLANKET SLOPE INSTALLATION GENERAL NOTES 3'-0" 6" EROSION CONTROL MIN. BLANKET A EROSION CONTROL BLANKETS ARE INTENDED TO BE USED AS AN IMMEDIATE MULCH COVER FOR DISTURBED SLOPES THAT HAVE BEEN TEMPORARILY OR PERMANENTLY SEEDED.
B EROSION CONTROL BLANKETS MAY ALSO BE USED AS CHANNEL LINERS WHERE THE ANTICIPATED MAXIMUM SHEAR STRESS IS LOW. REFER TO EC-STR-36 FOR INSTALLATION ANCHOR DETAILS. TRENCH 6" C EROSION CONTROL BLANKETS SHALL BE INSTALLED ACCORDING TO MANUFACTURERS ANCHOR TRENCH DETAILS SPECIFICATIONS. WHEN NOT AVAILABLE, INSTALL ACCORDING TO NOTES D THRU J.
6" EROSION CONTROL BLANKET ANCHOR TRENCH SINGLE NET EROSION CONTROL BLANKETS D STEP ONE: SITE PREPARATION THE SITE SHOULD BE FINE GRADED TO A SMOOTH PROFILE AND RELATIVELY FREE FROM ALL WEEDS, CLODS, STONES, ROOTS, STICKS, RIVULETS, GULLIES, CRUSTING AND CAKING. FILL ANY VOIDS AND MAKE SURE THE SLOPE IS COMPACTED PROPERLY. TRENCH DETAIL E STEP TWO: SEEDING SEEDING WITHOUT MULCH SHOULD BE APPLIED TO THE AREA TO BE VEGETATED. STAPLE 1.0' ON CENTER ALL OTHER F STEP THREE: PREPARE THE ANCHOR TRENCH EROSION CONTROL AT THE TOP OF THE SLOPE EXCAVATE AN ANCHOR TRENCH 6 INCHES DEEP BY 6 INCHES BLANKETS WIDE. THE EROSION CONTROL BLANKET WILL BE ANCHORED INTO THE TRENCH BY E 6" PROPERLY P STAPLES. ALLOW A MINIMUM OF 3 FEET FROM THE CREST OF THE SLOPE TO THE ANCHOR O PREPARED L TRENCH. S SLOPE SEE F 4" NOTE D O G STEP FOUR: SECURE THE EROSION CONTROL BLANKET IN THE ANCHOR TRENCH ON 4" BEGIN EROSION CONTROL BLANKET PLACEMENT 30 INCHES ABOVE THE ANCHOR TRENCH. I T RUN THE EROSION CONTROL BLANKET INTO THE ANCHOR TRENCH. ANCHOR THE EROSION C E CONTROL BLANKET WITH STAPLES ONE FOOT ON CENTER IN THE ANCHOR TRENCH. BE I R MIN. 2"-6" ANCHOR 3'-0" SURE TO DRIVE STAPLES OR STAKES FLUSH WITH THE SOIL SURFACE. BACKFILL THE D TRENCH MIN. OVERLAP ANCHOR TRENCH AND COMPACT THE SOIL. PLACE SEED OVER THE COMPACTED SOIL. SEE NOTE I (SEE DETAIL) COVER THE COMPACTED SOIL WITH THE REMAINING 12 INCHES OF THE TERMINAL END OF THE EROSION CONTROL BLANKET. STAPLE OR STAKE TERMINAL END DOWN SLOPE OF THE HORIZONTAL JOINT DETAIL COMPACTED STAPLE 1.0' ANCHOR TRENCH ON ONE FOOT CENTERS. ON CENTER BACKFILL SOIL ALL OTHER 6" H STEP FIVE: EROSION CONTROL BLANKET DEPLOYMENT UNDISTURBED OR EROSION CONTROL STARTING AT THE CREST OF THE SLOPE, ROLL THE EROSION CONTROL BLANKET DOWN STABILIZED SLOPE BLANKETS THE SLOPE IN A CONTROLLED MANNER. APPROXIMATELY EVERY 20-25 FEET PULL THE EROSION CONTROL BLANKET TO TAKE OUT ANY EXCESS SLACK. THE GOAL IS TO HAVE THE EROSION CONTROL BLANKET CONTOUR AND INITIATE CONTACT WITH THE SOIL. I STEP SIX: STAPLE OR STAKE THE EROSION CONTROL BLANKET SECURE THE OVERLAP OR THE EDGES WITH STAPLES. THE TYPICAL INSTALLATION WILL REQUIRE ONE STAPLE PLACED AT THREE TO FIVE FEET INTERVALS ALONG THE VERTICAL ANCHOR LENGTH OF THE EROSION CONTROL BLANKET. STAPLES SHOULD BE STAGGERED EVERY TRENCH 18 TO 24 INCHES HORIZONTALLY ACROSS THE EROSION CONTROL BLANKET. IF THE EROSION CONTROL BLANKET NEEDS TO BE SPLICED IN THE MIDDLE OF A SLOPE BE SURE ANCHOR TRENCH DETAILS THE EROSION CONTROL BLANKET IS "SHINGLED" WITH UP-SLOPE EROSION CONTROL BLANKET OVERLAPPING THE DOWN-SLOPE EROSION CONTROL BLANKET. THERE SHOULD ALL OTHER EROSION CONTROL BLANKETS BE A MINIMUM OF 4-INCHES OF OVERLAP IN A SPLICE. USE A STAPLE CHECK SLOT TO SECURE THE OVERLAP. A STAPLE CHECK SLOT IS MADE BY PLACING A ROW OF STAPLES 4-INCHES ON CENTER AND THEN PLACING A SECOND ROW OF STAPLES 4-INCHES ON CENTER, STAGGERED FROM THE FIRST ROW.
J STEP SEVEN: SECURING THE EROSION CONTROL BLANKET AT THE TOE OF SLOPE ROLL THE EROSION CONTROL BLANKET 24-INCHES PAST THE TOE OF THE SLOPE. STAPLE OR STAKE TERMINAL END OF THE EROSION CONTROL BLANKET ON ONE FOOT CENTERS. 2"-4" MIN. E K ONLY EROSION CONTROL BLANKETS LISTED ON THE QUALIFIED PRODUCTS LIST MAY O P MINOR REVISION -- FHWA S L BE USED. APPROVAL NOT REQUIRED. ND OU G R L EROSION CONTROL BLANKETS FOR SLOPE INSTALLATION SHALL BE PAID FOR UNDER N G THE FOLLOWING ITEM NUMBERS: NOT TO SCALE S T I E X I 4 " 2 " - 801-02 SEEDING (WITHOUT MULCH) PER UNIT 801-02.01 CROWN VETCH MIXTURE (WITHOUT MULCH) PER UNIT STATE OF TENNESSEE 1.0' 801-02.08 TEMPORARY SEEDING (WITHOUT MULCH) PER UNIT DEPARTMENT OF TRANSPORTATION LONGITUDINAL 805-12.01 EROSION CONTROL BLANKET (TYPE I) PER SQUARE YARD JOINT DETAIL 805-12.02 EROSION CONTROL BLANKET (TYPE II) PER SQUARE YARD 805-12.03 EROSION CONTROL BLANKET (TYPE III) PER SQUARE YARD EROSION CONTROL EROSION CONTROL BLANKET STAPLE DETAILS 805-12.04 EROSION CONTROL BLANKET (TYPE IV) PER SQUARE YARD (USE MANUFACTURER'S RECOMMENDED STAPLE PATTERN) BLANKET FOR PAYMENT SHALL INCLUDE ALL MATERIALS AND LABOR NECESSARY FOR CONSTRUCTION SEE NOTE J AND MAINTENANCE OF EROSION CONTROL BLANKETS. SLOPE INSTALLATION EROSION CONTROL PLAN LEGEND: EROSION CONTROL BLANKET 10-26-92 EC-STR-34
ADDENDUM 1 (12/16/2020)
DIAPHRAGM
BACK
END FRONT
ISOMETRIC - TYPICAL GABION
N.T.S.
DOUBLE HALF HITCH LOOP
SINGLE HALF HITCH LOOP 1.40" 1.00"
1" OVERLAP DOUBLE HALF HITCH LOOP
0.4" 1.90" 0.80"
1.80" SINGLE HALF HITCH LOOP
3" -3 3/8 " 1 1/2 " BEFORE CLOSURE AFTER CLOSURE BEFORE CLOSURE AFTER CLOSURE
12 GAGE SPIRAL BINDER
TYPE 4 FASTENER SPIRAL BINDER TYPE 1 FASTENER INTERLOCKING WIRE TYPE 2 FASTENER OVERLAPPING RING TYPE 3 FASTENER LACING WIRE
NOTE: DIMENSIONS SHOWN ARE NOMINAL MINOR REVISION -- FHWA APPROVAL NOT REQUIRED.
STATE OF TENNESSEE
DEPARTMENT OF TRANSPORTATION
7-29-04 EC-STR-57
GABION ASSEMBLY DETAILS WELDED MESH SPIRAL BINDER LACING DETAIL WOVEN CRIMPED END OF JOINT TO BE USED WITH ONLY BASKET HEIGHT 1'-0", 1'-6", AND 3'-0" (APPLICATION DEPENDENT) CONNECT ADDITIONAL BASKETS AS NEEDED FOR REQUIRED LENGTH SELVEDGE WIRE EXAMPLE BELOW SHOWS 3-CELLED, 9 FOOT LONG ATTACHED 6 GABION. ACTUAL LENGTHS WILL VARY, BUT SHALL MULTIPLES (1,2,3, OR 4) THE 3 WIDTH. MINIMUM DIAMETER 0.15 INCH 0.12 CONTINUOUS 4" NOMINAL SPACING LOCK INSTALL TYPE 1 2 FASTENERS AT EACH OPENING ALONG EDGE. MUST PASS THROUGH SEE CONNECTING TOGETHER (SEE GENERAL NOTES 8 ON EC-STR-59) REV. 4-1-08: REVISED TEXT DETAIL. 1.05"- 1.10" SNAP PT SNAP PT
ADDENDUM 1 (12/16/2020)
DIAPHRAGM
X X
H
H
X X
X 1' 1' 1' 1' 1' 1' 1' 1' 1'
H X MULTIPLE CELL GABION
SINGLE CELL GABION
ALL GABION CELLS
3'-0" 1/3H & 2/3H
1'-6" 1/2H
1'-0" NONE
3'-0" 1/3H & 2/3H
1'-6" 1/2H
1'-0" NONE
N.T.S.
N.T.S. MINOR REVISION -- FHWA APPROVAL NOT REQUIRED.
STATE OF TENNESSEE
DEPARTMENT OF TRANSPORTATION
7-29-04 EC-STR-58
TWISTED WOVEN MESH FABRIC WELDED PLACEMENT OF INTERNAL CONNECTING WIRE REINFORCEMENT GABION ASSEMBLY DETAILS OPTIONAL DIAGONAL CORNER STIFFENERS FOR BASKETS ONLY TIE SPACING, X CELL HEIGHT H (FT) STIFFENER THREE VERTICAL AND TWO HORIZONTAL WIRES ENCOMPASSED SIX INDEPENDENT LOOPED AROUND 2 OPENINGS SECURED WITH 5 TWISTS (MIN.) INTERIOR CELLS REQUIRE FRONT-TO-BACK CRIMP HOOK CLOSED REINFORCING UNIFORMLY SPACED SECURE 9 GAGE HOOKED AT INTERSECTION WIRES. PREFORMED REV. 4-1-08: MINOR TEXT REVISION. SNAP PT SNAP PT REV. 4-15-06: REFORMATTED SHEET, REVISED NOTES, MISC. ADDENDUM 1 (12/16/2020) EDITS TO DRAWING. REV. 4-1-08: REVISED GENERAL NOTES, REMOVED GEOTEXTILE SPEC. TABLE, REFORMATTED SHEET. REV. 8-1-12: MINOR EDITS TO GENERAL NOTES, REVISED NOTE BELOW COMPONENT PROPERTIES. GABION CHECK DAM GENERAL NOTES GABION CHECK DAM GENERAL NOTES (CONT.)
A GABIONS SHALL BE APPLIED AS CHECK DAMS WHERE ALLOWABLE MAXIMUM SHEAR FORCES AND M UNLESS OTHERWISE SPECIFIED ON THE PLANS, THE VERTICAL JOINTS BETWEEN GABION BASKET VELOCITIES FOR LOOSE RIP RAP ARE EXCEEDED. UNITS OF ADJACENT LAYERS OR TIERS, ALONG THE LENGTH OF THE CHECK DAM, SHALL BE STAGGERED BY A MINIMUM OF ONE CELL. B GABION CHECK DAMS SHALL NOT BE USED IN STREAMS. N FILLING OPERATION C GABION CHECK DAMS ARE TO BE USED, PRIMARILY AS AN EROSION CONTROL MEASURE FOR VELOCITY REDUCTION. AN APPROPRIATE GABION CHECK DAM CONFIGURATION MAY BE 1. FOR REINFORCEMENT, INTERNAL CONNECTING WIRES SHALL BE PLACED IN EACH UNRESTRAINED SELECTED USING EC-STR-56. THE 2-YEAR PEAK FLOW RATE MUST BE LESS THAN OR EQUAL GABION CELL 18 INCHES OR GREATER IN HEIGHT, INCLUDING GABION CELLS LEFT TEMPORARILY TO THE WEIR FLOW SHOWN FOR THE SELECTED GABION CHECK DAM CONFIGURATION. AT UNRESTRAINED. TWO INTERNAL CONNECTING WIRES SHALL BE PLACED (TWO ACROSS THE WIDTH SITES WHICH DRAIN TO EXCEPTIONAL TENNESSEE WATERS OR SEDIMENT-IMPAIRED STREAMS, THE AND TWO ACROSS THE LENGTH) CONCURRENTLY WITH ROCK PLACEMENT, AT THE SPECIFIED DEPTH 5-YEAR PEAK FLOW RATE MUST BE LESS THAN OR EQUAL TO THE WEIR FLOW SHOWN ON THE TABLE. INTERVAL SHOWN ON STANDARD DRAWING EC-STR-58. IN WOVEN MESH GABIONS THESE REINFORCING WIRES SHALL BE EVENLY SPACED ALONG THE FRONT FACE AND CONNECTING TO THE BACK D GABION CHECK DAMS MAY REMAIN IN PLACE AS PERMANENT CHECK DAMS, IF SHOWN IN THE FACE. ALL CONNECTING WIRES SHALL BE LOOPED AROUND TWO MESH OPENINGS AND EACH WIRE END PLANS OR AS DIRECTED BY THE ENGINEER. SHALL BE SECURED BY A MINIMUM OF FIVE 180 DEGREE TWISTS AROUND ITSELF AFTER LOOPING. E THE CENTER OF THE GABION CHECK DAM MUST BE AT LEAST ONE (1) FOOT LOWER THAN THE 2. IN WELDED MESH GABIONS, OPTIONAL CORNER STIFFENERS MAY BE USED IN LIEU OF INTERNAL OUTER EDGES. THIS WILL ELIMINATE THE BASKET-SOIL FAILURE POINT WHERE THE GABION CONNECTING WIRE REINFORCEMENT. WHEN USED, DIAGONAL STIFFENERS SHALL BE PLACED ACROSS CHECK DAM AND NATURAL GROUND MERGE. THE CORNERS OF THE GABIONS AT 12 INCHES FROM CORNERS AS DETAILED ON STANDARD DRAWING EC-STR-58. LACING WIRE OR PREFORMED HOOKING WIRE STIFFENERS MAY BE USED. F WIRE MESH GABION ALTERNATES: 3. THE GABIONS SHALL BE CAREFULLY FILLED WITH ROCK, EITHER BY MACHINE OR HAND 1. WOVEN MESH - NON-RAVELING TRIPLE TWISTED HEXAGONAL WIRE MESH, CONSISTING METHODS, ENSURING ALIGNMENT, AVOIDING BULGES, AND PROVIDING A COMPACT MASS THAT OF TWO WIRES TWISTED TOGETHER IN THREE 180 DEGREE TURNS. AREA OF MESH MINIMIZES VOIDS. MACHINE PLACEMENT WILL REQUIRE SUPPLEMENTING WITH HAND WORK OPENINGS SHALL NOT EXCEED 10 SQUARE INCHES. THE MINIMUM LINEAR DIMENSION TO ENSURE THE DESIRED RESULTS. THE CELLS IN ANY ROW SHALL BE FILLED IN STAGES SO THAT OF A WOVEN MESH OPENING SHALL NOT EXCEED 4.5 INCHES. THE DEPTH OF ROCK PLACED IN ANY ONE CELL DOES NOT EXCEED THE DEPTH OF ROCK IN ANY ADJOINING CELL BY MORE THAN 3 INCHES. ALONG THE EXPOSED FACES, THE OUTER LAYER OF 2. WELDED MESH - WELDED WIRE MESH WITH A UNIFORM SQUARE OR RECTANGULAR PATTERN STONE SHALL BE CAREFULLY PLACED AND ARRANGED BY HAND TO ENSURE A NEAT, COMPACT AND RESISTANCE WELD AT EACH INTERSECTION. THE WELDED WIRE CONNECTIONS SHALL PLACEMENT WITH A UNIFORM APPEARANCE. CONFORM WITH THE REQUIREMENTS OF ASTM A185, INCLUDING WIRE SMALLER THAN W1.2 (0.124 IN.), EXCEPT THAT THE WELDED CONNECTIONS SHALL HAVE A MINIMUM AVERAGE 4. THE LAST LAYER OF ROCK SHALL BE UNIFORMLY LEVELED TO THE TOP EDGES OF THE GABIONS. SHEAR STRENGTH OF 70% AND A MINIMUM SHEAR STRENGTH OF 60% OF THE MINIMUM LIDS SHALL BE STRETCHED TIGHT OVER THE ROCK FILLING USING ONLY APPROVED LID CLOSING ULTIMATE TENSILE STRENGTH OF THE WIRE. WIRE SHALL BE GALVANIZED AFTER THE TOOLS AS NECESSARY. THE USE OF CROWBARS OR OTHER SINGLE POINT LEVERAGE BARS FOR LID FORMING OF THE WELDED MESH. CLOSING IS PROHIBITED, AS THEY MAY DAMAGE THE BASKETS. THE LID SHALL BE STRETCHED UNTIL IT MEETS THE PERIMETER EDGES OF THE FRONT AND END PANELS. THE GABION LID SHALL G WIRE FOR FABRICATION AND ASSEMBLY SHALL BE HOT-DIPPED GALVANIZED. THE WIRE SHALL THEN BE SECURED TO THE SIDES, ENDS, AND DIAPHRAGMS WITH SPIRAL BINDERS, INTERLOCKING HAVE A MINIMUM TENSILE STRENGTH OF 60,000 PSI. GALVANIZED STEEL WIRE SHALL WIRE, OVERLAPPING RING FASTENERS, OR LACING WIRE WRAPPED WITH ALTERNATING SINGLE AND CONFORM TO ASTM A641, CLASS 3, SOFT TEMPER. DOUBLE HALF-HITCHES IN THE MESH OPENINGS. H TYPE 1, TYPE 2 AND TYPE 3 FASTENERS MUST PROVIDE A MINIMUM STRENGTH OF 1,400 O CARE SHOULD BE TAKEN WHEN PLACING ROCK IN GABIONS TO INSURE THAT THE GABION BASKETS WILL POUNDS PER LINEAR FOOT FOR GABION BASKETS. ALL FASTENERS SHALL MEET ALL OF THE NOT BE DAMAGED OR BROKEN. COATING REQUIREMENTS OF THE GABION MANUFACTURER IN ADDITION TO ANY REQUIREMENTS SPECIFIED IN THESE GENERAL NOTES. P ROCK OR STONE SIZE FOR USE IN GABION BASKETS SHALL BE BETWEEN 4 AND 8 INCHES WITH A D OF 50 6 INCHES (MINIMUM) AND SHALL CONSIST OF FIELD STONE OR ROUGH UNHEWN QUARRY STONE. THE I TYPE 4 SPIRAL BINDERS ARE FOR WELDED-MESH GABION BASKETS ONLY AND SHALL BE FORMED SPECIFIC GRAVITY OF INDIVIDUAL STONES SHALL BE A MINIMUM OF 2.6. STONES SHALL BE OF A FROM WIRE MEETING THE SAME QUALITY AND COATING THICKNESS REQUIREMENTS AS SPECIFIED QUALITY THAT WILL NOT DISINTEGRATE WITH EXPOSURE TO WATER OR WEATHERING. FOR THE GABION BASKETS. ALTERNATE FASTENERS FOR USE WITH WIRE MESH GABIONS, SUCH AS RING FASTENERS, SHALL BE FORMED FROM WIRE MEETING THE SAME QUALITY AND COATING Q GEOTEXTILE FABRIC (TYPE III) SHALL MEET REQUIREMENTS OF THE STANDARD SPECIFICATIONS FOR THICKNESS REQUIREMENTS AS SPECIFIED FOR THE GABIONS. GEOTEXTILES AASHTO DESIGNATION M-288, EROSION CONTROL. J FOUNDATION PREPARATION - SURFACE IRREGULARITIES, LOOSE MATERIAL, VEGETATION, AND R GABION CHECK DAMS SHALL BE PAID FOR UNDER THE FOLLOWING ITEM NUMBERS: ALL FOREIGN MATTER SHALL BE REMOVED FROM FOUNDATIONS. 709-05.06 MACHINE RIP-RAP (CLASS A-1) PER TON K ASSEMBLY - ROTATE THE GABION PANELS INTO POSITION AND JOIN THE VERTICAL EDGES 709-10.01 GABIONS (DESCRIPTION) PER CUBIC YARD WITH FASTENERS FOR GABION ASSEMBLY. WHERE LACING WIRE IS USED, WRAP THE WIRE WITH 709-10.02 GABIONS (DESCRIPTION) PER CUBIC YARD ALTERNATING SINGLE AND DOUBLE HALF-HITCHES AT INTERVALS BETWEEN FOUR (4) TO FIVE 709-10.03 GABIONS (DESCRIPTION) PER CUBIC YARD (5) INCHES. WHERE SPIRAL FASTENERS ARE USED FOR WELDED-WIRE MESH, CRIMP THE ENDS 709-10.04 GABIONS (DESCRIPTION) PER CUBIC YARD TO SECURE THE SPIRALS IN PLACE. WHERE RING TYPE ALTERNATE FASTENERS ARE USED FOR 709-10.05 GABIONS (DESCRIPTION) PER CUBIC YARD BASKET ASSEMBLY, INSTALL THE FASTENERS AT A MAXIMUM SPACING OF 6 INCHES. USE THE 740-10.03 GEOTEXTILE (TYPE III)(EROSION CONTROL) PER SQUARE YARD SAME FASTENING PROCEDURES TO INSTALL INTERIOR DIAPHRAGMS WHERE THEY ARE REQUIRED. INTERIOR DIAPHRAGMS WILL BE REQUIRED WHEN ANY INSIDE DIMENSION OF A GABION BASKET PAYMENT SHALL INCLUDE ALL MATERIALS, EQUIPMENT, EXCAVATION, AND LABOR NECESSARY FOR EXCEEDS 3 FEET. CONSTRUCTION AND MAINTENANCE OF THE GABION CHECK DAMS. L PLACEMENT - PLACE THE EMPTY GABIONS ON THE FOUNDATION AND INTERCONNECT THE S SEDIMENT SHALL BE REMOVED FROM BEHIND THE GABION CHECK DAMS WHEN IT HAS ACCUMULATED TO ADJACENT GABIONS ALONG THE TOP, BOTTOM, AND VERTICAL EDGES USING LACING WIRE. ONE-HALF THE ORIGINAL HEIGHT OF THE DAM AND PAID FOR UNDER ITEM NUMBER 209-05, WRAP THE WIRE WITH ALTERNATING SINGLE AND DOUBLE HALF-HITCHES AT INTERVALS BETWEEN SEDIMENT REMOVAL, PER CUBIC YARD. FOUR (4) TO SIX (6) INCHES. UNLESS OTHERWISE SPECIFIED, LACING WIRE WILL BE THE ONLY FASTENER ALLOWED FOR INTERCONNECTING WOVEN MESH GABIONS. SPIRAL FASTENERS ARE T SEE STANDARD DRAWINGS EC-STR-55, EC-STR-56, EC-STR-57, AND EC-STR-58 FOR ADDDITIONAL COMMONLY USED FOR THE ASSEMBLY AND INTERCONNECTION OF WELDED MESH GABIONS. DETAILS AND GENERAL NOTES NOT SHOWN ON THIS DRAWING. SPIRALS ARE SCREWED DOWN AT THE CONNECTING EDGES, THEN EACH END OF THE SPIRAL IS SECURELY TIED DOWN TO PREVENT UNRAVELING. LACING MAY BE USED AS NEEDED TO SUPPLEMENT THE INTERCONNECTION OF WELDED MESH GABIONS, AND THE CLOSING OF LIDS. FOR GABION LACING DETAILS, SEE EC-STR-57. GABION CHECK DAM COMPONENT PROPERTIES * GALVANIZED TOTAL DIAMETER MESH SIZE U.S WIRE TYPE OF WIRE ZINC COATING CORE WIRE (INCHES) (GAGE) MINOR REVISION -- FHWA (0Z/S.F.) (INCHES) APPROVAL NOT REQUIRED.
WOVEN (TWISTED) 12 0.8 0.105 WIRE MESH 3.25 X 4.50 NOT TO SCALE WELDED WIRE 3.00 X 3.00 12 0.8 0.105 MESH STATE OF TENNESSEE SELVEDGE 10 0.8 0.130 DEPARTMENT OF TRANSPORTATION LACING WIRE 13.5 0.8 0.087 GABION CHECK DAM INTERNAL 13.5 0.8 REINFORCING WIRE 0.087 GENERAL NOTES SPIRAL BINDER 12 0.8 0.105 AND COMPONENT PROPERTIES * ALL COMPONENTS SHALL BE HOT-DIPPED GALVANIZED STEEL (SEE NOTE F2 REGARDING WELDED MESH GABIONS). 7-29-04 EC-STR-59